Browse Dams
4,128 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 4,128 dams from the NID database. Each record includes dam name, location, physical dimensions, hazard potential classification, condition assessment, purpose, owner information, and emergency action plan status. Use the filters below to search by state, hazard level, condition, or keyword.
| Name | State | County | Height (ft) | Hazard | Condition | Year | Purpose |
|---|---|---|---|---|---|---|---|
| Arlington Subwatershed Sta 51+00 #6 | Iowa | Woodbury | 29 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Arlington Subwatershed Sta 38+80 #11 | Iowa | Plymouth | 29 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Rocky Branch Creek Watershed Site C-2 | Iowa | Jefferson | 29 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| East Fork Grand River Watershed Site B-29 | Iowa | Ringgold | 29 | Low | Not Rated | 2006 | |
| East Fork Grand River Watershed Site A-104 | Iowa | Ringgold | 29 | Low | Not Rated | 2007 | Flood Risk Reduction |
| Cross Country Estates Dam | Iowa | Dallas | 29 | Significant | Satisfactory | 2002 | Recreation |
| East Fork Grand River Watershed Site B-46 | Iowa | Ringgold | 29 | Low | Not Rated | 2006 | Flood Risk Reduction |
| Appanoose County Roadgrade Dam 19-69-19 | Iowa | Appanoose | 29 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| West Fork One Subwatershed Site 2-10110 | Iowa | Woodbury | 29 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| East Fork Grand River Watershed Site B-69 | Iowa | Ringgold | 29 | Low | Not Rated | 2004 | Flood Risk Reduction |
| West Fork One Subwatershed Site 4-4050 | Iowa | Woodbury | 29 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| East Fork Grand River Watershed Site B-48 | Iowa | Ringgold | 29 | Low | Not Rated | 2007 | Flood Risk Reduction |
| Soap Creek Watershed Site 68-36 | Iowa | Monroe | 29 | Low | Not Rated | 2011 | Flood Risk Reduction |
| Soap Creek Watershed Site 68-58a | Iowa | Monroe | 29 | Low | Not Rated | 2006 | Flood Risk Reduction |
| Sandahl Dam | Iowa | Page | 28 | Low | - | 2024 | Grade Stabilization |
| Hallquist Dam | Iowa | Montgomery | 28 | Low | Not Rated | 2009 | Grade Stabilization |
| Baldwin Dam | Iowa | Plymouth | 28 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Sievers Dam | Iowa | Pottawattamie | 28 | Low | Not Rated | 2003 | Fire Protection, Stock, Or ... |
| Vanderpool Dam | Iowa | Warren | 28 | Low | Not Rated | 1995 | Fire Protection, Stock, Or ... |
| Sharp Dam | Iowa | Crawford | 28 | Low | Not Rated | 1945 | Fire Protection, Stock, Or ... |
| Wadle Dam | Iowa | Warren | 28 | Low | Not Rated | 2005 | Fire Protection, Stock, Or ... |
| Herring Dam | Iowa | Lucas | 28 | Low | Not Rated | 1987 | Fire Protection, Stock, Or ... |
| Middleton Dam | Iowa | Warren | 28 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Bingaman Dam | Iowa | Adair | 28 | Low | Not Rated | 1992 | Fire Protection, Stock, Or ... |
| Schaper Dam | Iowa | Warren | 28 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Crall Dam | Iowa | Monroe | 28 | Low | Not Rated | 1991 | Fire Protection, Stock, Or ... |
| Rodgers Dam | Iowa | Marion | 28 | Low | Not Rated | 1981 | Fire Protection, Stock, Or ... |
| Ballanger Dam | Iowa | Appanoose | 28 | Low | Not Rated | 2004 | Fire Protection, Stock, Or ... |
| Brody Dam | Iowa | Clarke | 28 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Garretson Dam | Iowa | Henry | 28 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Mulvihill Dam | Iowa | Madison | 28 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Oen Dam | Iowa | Wayne | 28 | Low | Not Rated | 2008 | Fire Protection, Stock, Or ... |
| Rosener Dam | Iowa | Crawford | 28 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Boswell Dam | Iowa | Lucas | 28 | Low | Not Rated | 2000 | Fire Protection, Stock, Or ... |
| Stewart Dam | Iowa | Lee | 28 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| Cannon Dam | Iowa | Decatur | 28 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Wolterman Dam | Iowa | Ida | 28 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Conley Dam | Iowa | Plymouth | 28 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Arkema Dam | Iowa | Marion | 28 | Low | Not Rated | 1996 | Fire Protection, Stock, Or ... |
| Massey Dam | Iowa | Decatur | 28 | Low | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Hartsook Dam | Iowa | Ringgold | 28 | Low | Not Rated | 1998 | Fire Protection, Stock, Or ... |
| Mead Dam | Iowa | Warren | 28 | Low | Not Rated | 1981 | Fire Protection, Stock, Or ... |
| Scott Dam | Iowa | Decatur | 28 | Low | Not Rated | 1981 | Fire Protection, Stock, Or ... |
| Iowa Noname68 | Iowa | Guthrie | 28 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Halverson Dam | Iowa | Guthrie | 28 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Mass Dam | Iowa | Mills | 28 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Fridley Dam | Iowa | Warren | 28 | Low | Not Rated | 2001 | Fire Protection, Stock, Or ... |
| Sickels Dam | Iowa | Ringgold | 28 | Low | Not Rated | 2005 | Fire Protection, Stock, Or ... |
| Corrigan Dam | Iowa | Warren | 28 | Low | Not Rated | 2005 | Fire Protection, Stock, Or ... |
| Evans Dam | Iowa | Adams | 28 | Low | - | 2021 | Grade Stabilization |
Frequently Asked Questions
Hazard potential is based on the consequences of dam failure, not the condition of the dam. High hazard means loss of human life is probable. Significant means economic and environmental losses are expected but no probable loss of life. Low means minimal losses are expected. The classification considers downstream population, infrastructure, and environmental resources.
Condition ratings reflect the physical state of the dam based on periodic inspections. Satisfactory means no deficiencies found. Fair means minor issues exist but no immediate action needed. Poor means safety deficiencies require remedial action. Unsatisfactory means the dam is unsafe and immediate corrective action is required.
Yes. Use the search field above to find dams by name. You can also combine the search with state, hazard, and condition filters to narrow your results. Each dam record links to a detail page with complete information.